Ventilator.



No. 644,335. Patented Feb. 27, I900.

B. H. SCHUMACHEB.

VENTILATUB.

(Application filed Nov. 15, 1898.)

2 Sheets-Sheet l.

(No Model.)

iiflifichumaniuw No. 644,335. Patented Feb. 27, I900.

R. H. SCHUMACHER.

VENTILATOR.

(Application fi1ed Nov. 15, 1898. I No Model.) I 2 Shets-$heet 2.

WHDQSSGS RESCZZZZI/MF D enTOP. WZ w MW STATES ROBERT Il. SOHUMAOHER, OFNAVASOTA, TEXAS.

VENTILAi'QR.

SPECIFICATION forming part of Letters mat No. 644,335, am February 27,1900. Application filed November 15, 1898. Serial No. 696551. (Nomodel.)

, fication.

This invention relates to ventilators designed to be applied to theroofs of buildings and other structures to provide means for insuring aproper ventilation of one or more rooms throughout the building byproviding for maintaining a constant circulation of fresh or cold airinto the building and an escape for the heated and vitiated air.

To this end the invention contemplates an improved construction of houseventilator having simple and efficient means for forcing a large volumeof air into a house or building, so that it can be distributedthroughout the various rooms or apartments thereof, while also insuringthe proper exhaust or outlet for the heated and vitiated air,.therebycausing a continuous circulation of the air. In carrying out this objectthe invention provides anovel form of hood or cap for the ventilatorwhich will automatically adjust itself in the direction of. the wind inthe manner of a weather-cock and will also provide for a forceddowndraft of the cold or fresh air.

Another feature of this invention is improved means for effectivelyexcluding the rain from the inlet and exhaust passages of theventilator.

With these and other objects in view, which will readily appear as thenature of the invention is better understood, the same consists in thenovel construction, combination, and arrangement of parts hereinaftermore fully described, illustrated, and claimed.

While the essential and characteristic features of the invention arenecessarily susceptible to modification, still the preferred embodimentof the invention is illustrated in the accompanying drawings, in which--Figure l is a vertical longitudinal sectional view of a house-ventilatorconstructed in accordance with the present invention. Fig. 2

is a cross-sectional view on the line 2 2 of Fig. 3 is a similar view onthe line Fig. 4 is a similar view on the Fig. 5 is an enlarged de-Fig. 1. 3 3 of Fig. 1. line 4: 4 of Fig. 1.

tail sectional view of the ball-bearing support for the revolubleelbow-hood.

Referring to the accompanying drawings, the numeral 1 designates astationary upright cold-air trunk, which is preferably made in acylindrical form and is designed to be sup ported on the roof of a houseor building by any of the well-known means, and in the present inventionthe said cold-air trunk 1 forms a downdraft-flue for the passage of coldor fresh air which is to be circulated into the building.

To provide for conducting the cold air into the house or building to beventilated, the cold-air trunk 1 has projected from its lower end 2 asupply-pipe 3, which when only a single room or apartment is to beventilated is designed to have coupled thereto a single ven' tilatingpipe of the same diameter; but ordinarily the ventilator is designed tosupply a number of rooms with fresh air, and to carry out this objectthe bottom pipe extension 3 of the cold-air trunkis provided with an endplate 4:, closing its lower end and having fitted thereto the upper endsof a plurality of distributing tubes 5, which are carried through thewalls or in any other desirable way into the different rooms, so'thateach room will have a separate and independent supply-pipe connectionwith the main coldairtrunk of the ventilator.

The upright cold-air trunk 1 has projected from the upper end thereof areduced supporting-neck 6, which provides for the support of therevoluble elbow-hood 7 of the ventilator. The vertical or pendentportion of the revoluble elbow-hood 7 loosely encircles the neckextension 6 of the trunk and is provided atits lower edge with ahorizontal bearing flange or plate 8, which loosely bears on top of aseries of bearing-balls 9 or similar antifriction-bearings, which arepreferably made of vitreous or other equivalent material which will notcorrode under the action of the weather. The balls orantifriction-bearings 9, which provide a loose antifriction-support forthe lower end of the hood 7, are loosely housed within a beari ng-cu p10, fitted to the neck extension 6 and encircling the exterior portionthereof. In addition to carrying the ball-bearings or equivalent supportfor the revoluble hood 7 the neck extension 6 is further provided nearits upper end with an exterior bearing-ring 11, which serves to properlyspace the hood from the neck 6, so that the hood will always remainperfectly centered, and thereby be susceptible to the slightest pressureof the wind. In connection with the bearing-support for therevoluportion of the hood. The rotary fan-wheel- 14: essentiallycomprises a plurality of radial obliquely-set fan-blades 15, which aredisposed at such an angle as to insure a notation of the fan by theslightest breeze, and said fan-blades radiate from the central hub 16,housing therein balls or equivalent antifriction-bearings 17, whichprovide for the ballbearing support of the fan on the horizontalshaft-rod 18. The shaft-rod 18 is fitted horizontally and centrallywithin the upper portion of the revoluble hood and passes centrallythrough the transverse brace-bar 19, arranged adjacent to and at oneside of the fan-wheel. The outer end of the shaft-rod 18 projects beyondthe mouth of the hood and is formed with a pointed or arrow-headextremity 20, which is preferably made hollow and filled with suitableweight material 21, so as to balance the weight of the vane or tailplate22, having a rigid arm connection 23 with the exterior of the revolublehood 7 in alinement with the shaft-rod 18. The shaftrod, in combinationwith the vane 22, constitutes a weather-cock construction which willprovide for pointing the revoluble hood in the direction of the wind, sothat the wind or air currents will pass directlyinto the mouth 13 andthrough the fan 14:. The said fan will thus be caused to revolve andwill augment the volume of cold or fresh air which passes downwardthrough the cold-air trunk and into the pipe or pipes for distributingthe air into the room or rooms of the building.

To provide for intercepting the passage of rain, snow, or sleet throughthe air-trunk 1, the said trunk has arranged within the top portionthereof a horizontal protective shield 24, which is in the form of aninverted cup of a less diameter than the trunk 1 and provided with astraight wall 25, having an outturned lower edge 26. The shield 24 iscentered and supported Within the trunk 1 by means of the brace orequivalent connections 27 between the shield and the adjacent sides ofthe trunk, and the pendent wall 25 of said shield overhangs the interiorannular drain-gutter 28, fitted to the inner wall of the trunk. Theinterior annular drain-gutter 28 has suitable drain connections 29therewith, which communicate with the exterior of the trunk to providefor carrying off accumulations of water, and said gutter is closed atits inner side by an upwardly-convergent annular flange 30, with aninturned upper edge 31, which serves to assist in properly retaining thewater and at the same time facilitate the free passage of air throughthe trunk.

The protective shield 24 is spaced a distance above the interior gutter28, so that the water which strikes the top of the shield will drainfrom the pendent flange 25 thereof directly into the gutter, while atthe same time the incoming cold air has a free passage around theprotective shield and between the contiguous edges of its flange and theflange of the gutter.

The upright cold-air trunk 1 supports a plurality of exteriorexhaust-tubes 32 for the heated and vitiated air within the building.These tubes are grouped in a circular series around the exterior of thetrunk 1 and have their lower ends pass through the bottom of the trunkexterior to the pipe extension 3 at its lower end. The lower end of eachof said tubes 32 exterior to the pipe extension 3 is designed to havecoupled thereto an independent ventilating-pipe, which leads to one ofthe rooms of the building, and in this way it will be seen that theventilator provides a separate and independent exhaust connection forthe different rooms of the building, so as to carry off the heated andvitiated air as it is displaced by the cold or fresh air, which iscirculated in the manner already explained.

The upper vertical portions of the exterior exhaust-tubes 32 are fittedin the bottom of and open into a substantially U-shaped exterior annulardrain gutter or trough 33,which encircles and is secured to the exteriorof the cold-air trunk 1. The said exterior annular drain-gutter 33 isprovided in the bottom thereof with the drain-openings 34. for theescape of accumulations of water, and at this point it will be observedthat at their upper ends the tubes 32 are provided with flanges 35,projecting. above the bottom of the trough 33 to prevent water fromrunning into the tubes. In order to prevent the direct passage of rain,snow, or sleet into the tubes 32, the latter have arranged over theiropen upper ends a weather-cap 36. This weather-cap 36 is suspended bysuitable means within the plane of the trough 33 and is of a less widththan the same, which permits the free escape of the heated and vitiatedair from the exhaust-tubes, and the said weather-cap 36 is provided withpendent side flanges 37, which cause the rain to be deflected directlyinto that portion of the gutter 33 having the drainopenings.

From the foregoing it is thought that the construction, operation, andmany advantages of the improved house-ventilator will be readilyapparent to those skilled in the art without further description, and itwill be understood that changes in the form, proportion,

and the minor details of construction may be resorted to withoutdeparting from the principle or sacrificing any of the advantages ofthis invention.

Having thus described the invention, What is claimed, and desired to besecured by Letters Patent, is

1. A Ventilator comprising a vertical windtrunk, means for augmenting adowndraft of cold air therethrongh, a pipe extension of less diameterthan said wind-trunk, communicating directly with the lower end thereof,and having branched distributing-tubes, a series of vitiated-air fluesbent to extend into and through the lower end of the wind-trunk andhaving their upper ends grouped around the outside thereof, a draingutter supported around the outside of the wind-trunk and receiving theupper ends of said vitiated-air flues, and weather-caps supported bysaid drain-gutter over the open ends of the vitiated-air flues,substantially as described.

2. In a ventilator, an upright air-trunkhaving an interior annulardrain-gutter closed at its inner side by an upwardly-convergent annularflange, and a shield arranged horizontally above the gutter and having apendent annular flange overhanging the same, substantially as set forth.

3. In a ventilator, the combination of an upright air-trunk having adistributing-pipe connection at its lower end, a plurality ofexhaust-tubes arranged exterior to and supported by said trunk, and aweather-protecting device supported by the trunk on the exterior thereofand having connection with the upper ends of said exhaust-tubes,substantially as set forth.

4. In a ventilator, the combination of an upright cold-air trunkprovided with an exterior 4o annular drain-gutter having bottomdrainopenings, a plurality of exhaust tubes arranged exterior to andsupported by said trunk, and having their upper ends projecting throughthe bottom of said gutter, and a flanged weathei cap supported Withinthe gutter above the upper ends of said exhaust tubes, substantially asset forth.

5. A ventilator comprising a vertical windtrunk, a drain-guttersupported within the wind-trunk and provided with an upwardlyprojectingflange and with drain-ports which open through the wind-trunk, a shieldsupported above the drain-gutter and within said wind-trunk and having adepending flange arranged concentric with the flange 0f thedrain-gutter, and a cowl revolubly mounted on the wind-trunk,substantially as described.

In testimony that I claimthe foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

ROBERT H. SOHUMAOI-IER.

Witnesses:

EWING LEONARD, O. S. TALIAFERRO.

